NEW Askar FRA300PRO 60mm f/5 Quintuplet Petzval Flat-Field Astrograph Telescope For Sale
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NEW Askar FRA300PRO 60mm f/5 Quintuplet Petzval Flat-Field Astrograph Telescope:
$854.00
Since their inception,Askar FRA serious short focal ratio astrograph have been very well received by astronomical amateurs.This year, we launch the FRA300 Pro--the smallest 60mm F/5 Petzval astrograph with the fastest native focal ratio in the FRA series so far,it\'s focal length is 300mm.The star is sharp and delicate.At the center of its field of view, the RMS radius can reach 2um. Even a serious user can also be satisfied when it comes to the shape of stars.
Since their inception,Askar FRA serious short focal ratio astrograph have been very well received by astronomical amateurs.This year, we launch the FRA300 Pro--the smallest 60mm F/5 Petzval astrograph with the fastest native focal ratio in the FRA series so far,it\'s focal length is 300mm.The star is sharp and delicate.At the center of its field of view, the RMS radius can reach 2um. Even a serious user can also be satisfied when it comes to the shape of stars.It performance excellent with full-frame and supports 44mm imaging,is a rare astrograph for amateur astronomers.Compared with F/6 or F/7，F/5 can effectively reduce the exposure time,helps you get the same exposure in less time.In addition, the entire OTA is compact, making it the portable choice for field photographers.
FRA300 Pro \'s objective lens adopts a quintuplet fully air-spaced structure, including one piece of ED glass,it also adopts a fully-multi-coating to effectively remove stray light.
In particular, the rear group lens adopts the two pieces of far-separated refractive lenses, which improves both the star quality and the aberration correction performance , and has a very good control of full-frame peripheral light reduction.
Thanks to the native Petzval design, the user does not need to calculate the backfocus, as long as the focus is within a certain range is the optimal position.
Mechanically，FRA300 Pro is assembled with high-quality CNC-machined components , wrapped with smooth spray coating and light oxidation process,both beautiful and practical.The tube ring design is equally lightweight and stylish.Despite the increased cost, we want enthusiasts to use the FRA300 Pro that perform well in every way and are considered in every detail.
The focuser is 2.5\"rack-and-pinion focuser, which is solid and beautiful.It\'s designed with dual-speed hand knobs, twin knobs for coarse adjustment and a fine adjustment knob to accurate the focus, equipped with a universal M48X0.75 thread adapter. There are also two separate M54X0.75 and M48X0.75 adapters in the standard kit for easy access to a variety of imaging equipment and accessories. The end is equipped with a 360° rotator, which is convenient for users to rotate at any angle when shooting.
FRA300 Pro also comes standard with a multi-function handle and a 300mm vixen-style dovetail plate, which can be directly connected to various mounts and accessories, the multi-functional handle can also be connected to the universal vixen-style finder base.The 300mm dovetail plate allows the astrograph to maintain balance on the mount.
FRA300Pro, as the first Pro version launched by Askar, goes further on the good reputation of the original FRA series, with amazing shooting performance, convenient carrying and using experience，will become your best astrophotography assistant at a cost effective price.
Specifications
FRA300PRO
Aperture
60mm
Focal length
300mm
Focal ratio
f/5
Objective type
Quintuplet fully air-spaced Petzval APO (including one ED glass)
Image circle
44mm full-frame
Maximum accessory connection (with the focuser fully retreated)
1. Imaging mode:
71mm (from the base of M42×0.75 male thread)
67mm (from the base of M48×0.75 male thread)
71mm (from the base of M54×1male thread)
Total length
303mm
OTA Weight
2.26kg
Total Weight (Including tube ring&dovetail plate）
3.12kg
Rear-end thread
M48*0.75 male thread
Standard package items
a tube ring, a handle, an Askar 300mm Vixen dovetail plate, a M42*0.75 adapters, a warranty，a manual
Shipping policy
1.No any handle fees.
2.Items will be shipped in 1-3businessdays on payment received.
3.We ship to eBay\'s address only. Please make sure your address in eBay is matched with your shipping address before payment.
4.We provide Economy Int\'l Shipping and Express shipping services.
5.We ship to USA,Europe bySpeedPAKand other countries by International parcel with registed T/N.
6.speedPAK standard is free,and Expedited shipping is an extra $25-65
Country Estimated Delivery Time(speedPAK standard) (Expedited shipping)
United States About 7-14 business time About 5-8 business time
Canada/Australia About 8-15 business time About 5-8 business time
Asia About 15-20 business time About 5-8 business time
Most of the European About 12-20 business time About 5-10 business time
Most of the European Union About 10-15 business time About 5-8 business time
South America About 25-37 business time About 6-11 business time
About us
1.We are founded in 2010, is a professional purchasing B2B & B2C tool.
2.We have more than 200,000 lines in stock and they can be shipped in 1 to 3 business days.
3.If you have any question or problem, please contact us. We will reply you in 24 hours and give your a satified answer.
Please note:
1.If the customer does not specify whether to send products in European or American standards, please send the products shown in the pictures uniformly.
2.Due to system limitations, it is not possible to set the shipping fee for each city and zip code, if you choose expedited shipping when placing
3.your order and your address is in the remote address list of DHL/FedEx/UPS, we may contact you to charge you for the address remoteness fee.
4.We will arrange the shipment according to the address the buyer provided, So please confirm and check the address details you filled when purchase.
5.Average delivery time for reference only, actual time varies for different countries and related to uncontrollable factors such as weather, natural disasters and pandemic.
6.Service Transit Time is provided by the carrier, weekends and holidays are excludes, so the shipping time may be longer than we promised, particularly during the holiday season, so please be patient.
7.Any tracking information updated will inform you in time, you can also get the tracking information from official website.
8.If you need the best price, please contact me,We will offer you the most affordable price, and we will be the lowest priced seller among Chinese sellers.
9.We support retail and wholesale.
